Electrically-operated vibrator.



G. L. PATTERSON & l. lF. BADEAU. ELECTRICALLY OPERATED VIBRATOR.

APPucATloN F|LEn'sPr.8,19H.

lym f Patentedmy. 1915.

2 SHEETS--SHEET l.

G. L. PATTERSON & l. -F. BADEAU.

I ELECT'RICALLY OPERATED VIBRATOR.

APPLICATION FILED sEPLs. IsII.

I 1.145,50?. l Patented IuIy 6,1915.

2 SHEETS--SHEET 2.

GL .BITTE/mow 5 wv@ toas wi/Imm@ I I ZTADEAZ/ W I Wnowcw 1 1 l* xe GEORGELEWIS PATTERSON AND vISAAC FRANCIS BDEAU, 0F NEW YORK, N. Y.,

. ASSIG'NORS TO ALICE C. PATTERSON, OF NEW YORK, N. Y.

' ELEcrRIcALLY-OPERATED vIBRATon.

Specification of Letters Patent. l Patentd July 6, i915.

Application filed September 8, 1911. Serial No. 648,355.

To all whom 'it may concern.'

Be it known that we, GEORGE L. PATTER- soN and ISAAC F. BADEAU, citizens of the United States, residin at New York city, countyv and State of lew York, have invented certain new and useful Improvements in Electrically-Operated Vibrators,

of which the following is a full, clear, and' opposite side of the frame is a contact post eXact description.

Our invention relates to electrically operated vibrators particularly, vthough not eX- clusively, adapted for use in electric bells.

Vibrating -armature,and whereby the said `contact is broken substantially at the com- The object of the invention is to provide means whereby the connection with the source of electiic energy ma be maintained for the greater portion of t e travel of the pletion of the powerfstroke of the armature.

A further object isfgto provide a construction in which 'the travel of the contactv spring through which the electromagnet is energized may be subjected tothe least possible deflection, whereby lthelife of `the spring is preserved yfor a greater period.

A further objectfistomaintain the electrical connection `with the source of energy for a comparatively extended portion ofthe power stroke of thefarmature so that the blow, (for example,) delivered by the gong striking arm may be rendered the 'more powerful.

A further object is to eliminate the 'energizing of the electric magnets through the frame of the bell.

With these and other objects in view,l as

will appear from the following description,

the invention consists in a construction and arrangement of parts, a preferred embodiment of which is illustrated in the accompanying drawings, in which- Figure 1 is a .plan view of an electric bell embodying our improvements. fragmentary side` elevation looking from the right of Fig. 1. Fig. 3 is a fragmentary under side view of the bell frame and magnet connections; and Fig. 4 is a view of a d etail of construction looking from above Fig. 1. y

Theembodiment of our invention herein selected for illustration comprises a bell A frame 1 on which a bell 2 is mounted by a bolt asat 3.

4-4 indicate the coils of the electromag- Fig. 2 'is a 1 net, the latter having poles 5-5'- Opposite the poles is the armature 6 pivoted in vany `Suitable manner as at 7,' and having a spring 8 to return the armature to initial position. Upon the frame 1 are mounted contact posts 9 and 10, in the former of which an e'.

adjustable contact screw -11- is mounted and on the latter' a spring contact 12.' U pon the 13. The leads from the source of energy` are connected ,to the posts 10 and13'respectively. The contact posts 1 0, 11 and 13 are securely mounted on the frame by means of vbase plates 10, 11 and 13', the screws 102,

112 and 132 said parts beingcarefully insulated from the frame. f l i Referring. to Fig. 3, showing the .under side View of theframe and. connections, it

means of a clip 18. As will be seeny by r'eferring to Figs. 1', 2 and' 4', the contact spring 12 passes through this loop 17. Referring particularly to Fig. 4, in which the armature is shown inthe position to which it is moved by the magnetism o f the coils and 'at the end of its power stroke, it will `be seen that the. opening of the loop 17 is of such depththat the. contactspringl is moved but a short distance from'the' contact screw 11, and furthermore, from this construction it will be obvious that lthe contact spring remains in contact with the screw 11 for the Vgreater" portion of the power stroke of the armature, whereby a more powerful blow is delivered by the striker on the gong. Furthermore, by reason of the short travel of the contact spring in breaking connection with .the screw 11, the vspring is preserved from 'crystallization, commonly found in bells of `this genera-l character wherein the contact 'spring is mounted upon the armature, -andis subject to violent and considerable deflection at.

-each stroke of the armature.

A further advantage of this improved construction is that the rengagement of $0 free the striker from the gong euiiiciently the spring with the contact Screiv is rapid owing to its short travel whereby the raie ofi vibration is accelerated.

llhile ive have herein shown a return A spring@ for the armature, it is to he nn Y f Ancvafele, a blade spring caril derstood that .this is no essential to the ing; said; niefable eonact peint, a iig'd operation of the device, since the action of im said spring; means cari-icc. hy the contact spring 12 will of itself Serve and eperaeivia during inoveinagne? a contee-1 l vice ii I contee/i1 penile, ene o1? reef Le ard :said ningneh 'Le malte ci;

x '30 permit vibration under the magnetic ac- 'r engagenienc with said blade tion ol the magnets 4. ln so far as our eX- spring Said inovaliile Contact 'peint but pernnents have shown, it seems conducive aib one eide 4hereol:7 said ineens having a may be altered in detail and arrangement peines against eac to the moet eiicient operation that a Sepalii'ni'ed arno "ne of ind/ependenLv niovenien'; rai'ze return spring, such as 8, he employed. rehitively Said. l; `de spring, said spring C ln one aspect of the invention, however, Jehe acingl' as e yielding' hach step for said nir-- return spring may be entirely eliminated, nianre, e ie Vensimi e: Said blade epi-ii While We have herein Shoivn and debeing in a direcr'zien to wi'hdiniv said arinascribed a particular embodiment of our inveure ifi-ein said magnet, said blade Sprl' if .fentifnfia it is to be understood thaiy the naine alec normally iLending` io held Seid cont;

n ofner.

claim. n A Y .n t` ,c Divin* en). Willian We claim is: J

ln an electric vibrator devicej an electroniagnet, relativelyv movable armature arn ranged te cooperate hereivitln a niain 

